Finding the Fourth Proportional to 1,307.88, 1,968.89 and 1,194.89

Step by Step Solution

1. Step 1: Write the proportion equation
   1,307.88 : 1,968.89 = 1,194.89 : x
2. Step 2: Convert to fraction form
   1,307.88/1,968.89 = 1,194.89/x
3. Step 3: Cross multiply
   1,307.88x = 1,968.89 × 1,194.89
4. Step 4: Simplify right side
   1,307.88x = 2,352,591.15
5. Step 5: Solve for x
   x = 2,352,591.15/1,307.88
6. Step 6: Final answer
   x = 1,798.78